feat: add RandSymbolChar

random/random.go

@@ -17,6 +17,7 @@ const (
 	LowwerLetters = "abcdefghijklmnopqrstuvwxyz"
 	UpperLetters  = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
 	Letters       = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
+	SymbolChars   = "!@#$%^&*()_+-=[]{}|;':\",./<>?"
 )
 
 func init() {
@@ -82,6 +83,12 @@ func RandNumeralOrLetter(length int) string {
 	return random(Numeral+Letters, length)
 }
 
+// RandSymbolChar generate a random symbol char(!@#$%^&*()_+-=[]{}|;':\",./<>?).
+// Play: todo
+func RandSymbolChar(length int) string {
+	return random(SymbolChars, length)
+}
+
 // random generate a random string based on given string range.
 func random(s string, length int) string {
 	b := make([]byte, length)

random/random_example_test.go

@@ -134,3 +134,20 @@ func ExampleRandUniqueIntSlice() {
 	// Output:
 	// ok
 }
+
+func ExampleRandSymbolChar() {
+	pattern := `^[\W|_]+$`
+	reg := regexp.MustCompile(pattern)
+
+	s := RandSymbolChar(6)
+
+	result1 := reg.MatchString(s)
+	result2 := len(s)
+
+	fmt.Println(result1)
+	fmt.Println(result2)
+
+	// Output:
+	// true
+	// 6
+}

random/random_test.go

@@ -154,3 +154,16 @@ func hasDuplicate(arr []int) bool {
 	}
 	return false
 }
+
+func TestRandSymbolChar(t *testing.T) {
+	t.Parallel()
+
+	pattern := `^[\W|_]+$`
+	reg := regexp.MustCompile(pattern)
+
+	symbolChars := RandSymbolChar(10)
+
+	assert := internal.NewAssert(t, "TestRandSymbolChar")
+	assert.Equal(10, len(symbolChars))
+	assert.Equal(true, reg.MatchString(symbolChars))
+}